I'm trying to create an extremely bare bones example with a single pixel, based off of "floratest". However I'm finding red & green are swapped. Rather than lighting RED, GREEN, BLUE, the pixels lights GREEN, RED, BLUE with the code below. Anyone else having this problem?

You (and I) received an early batch of smart pixels, which were made with GRB LEDs, not RGB LEDs. They'll work fine (with two color channels reversed in your code) so long as they're not combined in the same chain with RGB pixels. Lucky you, limited edition! :D

None of the production starter packs or pixels will have this issue, we made sure! If you need more GRB pixels for a project, though, let me know.